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error[E0495]: cannot infer an appropriate lifetime due to conflicting requirements
--> $DIR/issue-55796.rs:16:9
|
LL | Box::new(self.out_edges(u).map(|e| e.target()))
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
note: first, the lifetime cannot outlive the lifetime `'a` as defined on the trait at 5:17...
--> $DIR/issue-55796.rs:5:17
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LL | pub trait Graph<'a> {
| ^^
note: ...so that the type `std::iter::Map<<Self as Graph<'a>>::EdgesIter, [closure@$DIR/issue-55796.rs:16:40: 16:54]>` will meet its required lifetime bounds
--> $DIR/issue-55796.rs:16:9
|
LL | Box::new(self.out_edges(u).map(|e| e.target()))
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
= note: but, the lifetime must be valid for the static lifetime...
note: ...so that the expression is assignable
--> $DIR/issue-55796.rs:16:9
|
LL | Box::new(self.out_edges(u).map(|e| e.target()))
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
= note: expected `std::boxed::Box<(dyn std::iter::Iterator<Item = <Self as Graph<'a>>::Node> + 'static)>`
found `std::boxed::Box<dyn std::iter::Iterator<Item = <Self as Graph<'a>>::Node>>`
error[E0495]: cannot infer an appropriate lifetime due to conflicting requirements
--> $DIR/issue-55796.rs:21:9
|
LL | Box::new(self.in_edges(u).map(|e| e.target()))
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
note: first, the lifetime cannot outlive the lifetime `'a` as defined on the trait at 5:17...
--> $DIR/issue-55796.rs:5:17
|
LL | pub trait Graph<'a> {
| ^^
note: ...so that the type `std::iter::Map<<Self as Graph<'a>>::EdgesIter, [closure@$DIR/issue-55796.rs:21:39: 21:53]>` will meet its required lifetime bounds
--> $DIR/issue-55796.rs:21:9
|
LL | Box::new(self.in_edges(u).map(|e| e.target()))
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
= note: but, the lifetime must be valid for the static lifetime...
note: ...so that the expression is assignable
--> $DIR/issue-55796.rs:21:9
|
LL | Box::new(self.in_edges(u).map(|e| e.target()))
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
= note: expected `std::boxed::Box<(dyn std::iter::Iterator<Item = <Self as Graph<'a>>::Node> + 'static)>`
found `std::boxed::Box<dyn std::iter::Iterator<Item = <Self as Graph<'a>>::Node>>`
error: aborting due to 2 previous errors
For more information about this error, try `rustc --explain E0495`.
|
